Factor the four-term polynomial by grouping.30x2 - 24x - 25x + 20
A. (6x + 5)(5x + 4)
B. (30x - 5)(x - 4)
C. (6x - 5)(5x - 4)
D. (30x + 5)(x + 4)
Answer: C
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Give a geometric description of the set of points whose coordinates satisfy the given conditions.x2 + y2 + z2 = 49, z = 2
A. All points on the sphere x2 + y2 + z2 = 49 and above the plane z = 2 B. All points within the sphere x2 + y2 + z2 = 49 and above the plane z = 2 C. The sphere x2 + y2 + z2 = 4 D. The circle x2 + y2 = 45 in the plane z = 2
Simplify the expression.j17
A. j B. -j C. -1 D. 1
Evaluate the limit if one exists.
A. 0
B. 
C. Does not exist
D. 
Solve the problem. Use 3.14 for ? and round to the nearest tenth.A circular fountain has a statue in its center, 9 meters from the edge. What is the distance around the fountain?
A. 56.5 m B. 54.5 m C. 81 m D. 28.3 m